CN210186599U - Flushing type sand basin - Google Patents

Flushing type sand basin Download PDF

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Publication number
CN210186599U
CN210186599U CN201920327674.0U CN201920327674U CN210186599U CN 210186599 U CN210186599 U CN 210186599U CN 201920327674 U CN201920327674 U CN 201920327674U CN 210186599 U CN210186599 U CN 210186599U
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China
Prior art keywords
water
pipe
tunnel
pool
sand
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CN201920327674.0U
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Chinese (zh)
Inventor
Biao Guo
郭彪
Linhong Zhang
张林洪
Dejia Chen
陈德加
Lewen Hu
胡乐文
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Abstract

The utility model relates to a washing formula desilting basin. Comprises an upstream connecting section, a working section and a downstream connecting section; the upstream connecting section is connected with the diversion canal/pipe/tunnel, and the downstream connecting section leads to a downstream river; the upstream connecting section and the working section comprise a water inlet gate, an upstream connecting section side wall, a partition wall and a working section side wall; the downstream connecting section comprises a water delivery channel/pipe/tunnel, a filtering membrane, a transverse wall, a water delivery hole, a water taking pipe culvert/channel, a sand flushing gallery, a sand flushing gate and a sand discharging channel; the partition wall is used for dividing the pool chamber; the water delivery channel/pipe/tunnel is arranged at the tail end of the side wall of the working section and at the bottom of the pool close to the transverse wall or at one side of the transverse wall close to the sand discharge channel and at the bottom of the pool close to the transverse wall; the sand flushing gate is arranged at the tail end of the pool chamber; the sand discharge passage is connected with the pool chamber. The utility model provides a power generation, irrigation and water supply problems such as city of containing husky water source ground can conveniently wash sedimentary silt in the desilting pond again, make the desilting pond obtain cyclic utilization to this facility simple structure, convenient operation.

Description

Flushing type sand basin
Technical Field
The utility model relates to a washing formula desilting pond belongs to hydraulic engineering, water supply engineering technical field.
Background
The regions of China are vast, rivers are numerous, the difference of the sediment conditions of water systems of various watersheds is large, in northwest and middle regions of China, due to the fact that the rivers in the regions belong to sandy rivers, meanwhile, water resources in the regions are quite deficient, and in most cases, the problems of local irrigation and water supply can be solved only by introducing sand-containing water flows. In diversion irrigation and water supply engineering, harmful or excessive silt often can be met and get into, make the channel siltation and irrigated area desertification, and the person of heaviness can make hydraulic engineering hub paralysis, causes huge loss. Therefore, many researchers are studying the design method of the sand basin. The sand basin is used, so that sand-containing water flow can be fully utilized, local agricultural irrigation water and domestic water are met, water and sand resources can be reasonably distributed, desertification of an irrigation area is reduced or even eliminated, water resources are effectively protected, and the ecological environment is improved.
There are many design methods for the desilting pond, for example, publication No. CN108273292A discloses an ecological desilting pond structure, which is used to relieve water and soil loss of the hillside by installing a desilting pond on the hillside. Publication No. CN205223991U discloses a sluice desilting basin, which comprises a front dike, a desilting trough, a rear dike and a bottom surface. The filter screen is additionally arranged to intercept floating objects in river water. However, the overflow section is selected to be rectangular or trapezoidal, so that the overflow section is beneficial to sand settling but cannot play a good role in flushing sand, so that the sediment tank is easy to silt up, and a large amount of manpower and material resources are needed for dredging; and the settled water in the prior sand basin can not meet the requirements of factories and urban water supply projects on water quality, and the water quality purifier can be easily damaged.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the utility model provides a flushing type desilting basin for effectively solve the silt siltation problem in the desilting basin, siltation to certain degree when silt, accessible slope bottom of the pool with utilize the bottom of the pool to fall the characteristics that the triangle section overflows fast, conveniently wash sedimentary silt in the basin, the material resources of using manpower sparingly realize desilting basin cyclic utilization's efficiency, reach energy saving and emission reduction. Meanwhile, the water after precipitation can be further filtered by utilizing the filtering membrane to remove rust, silt, colloid and the like in the water, and the problem that the water quality purifier in the water supply engineering is easy to damage is effectively solved.
The utility model adopts the technical scheme that: a flushing type desilting basin comprises an upstream connecting section, a working section and a downstream connecting section; the upstream connecting section is connected with the diversion canal/pipe/tunnel 1, and the downstream connecting section leads to a downstream river;
the upstream connecting section and the working section consist of a water inlet gate 2, an upstream connecting section side wall 3, a partition wall 4 and a working section side wall 6;
the downstream connecting section consists of a water delivery channel/pipe/tunnel 7, a filtering membrane 8, a cross wall 9, a water delivery hole 10, a water taking pipe culvert/channel 11, a sand washing gallery 12, a sand washing gate 13 and a sand discharge passage 14;
the partition wall 4 is used for dividing the pool chamber 5; the pool chamber 5 is enclosed by the water inlet gate 2, the upstream connecting section side wall 3, the working section side wall 6 and the transverse wall 9, and the sand flushing gallery 12 is arranged between the transverse wall 9 and the pool bottom;
the water inlet gate 2 is arranged at the joint of the outlet of the water diversion canal/pipe/tunnel 1 and the inlet of the upstream connecting section; the sand washing gate 13 is arranged at the tail end of the pool chamber 5; the sand discharge channel 14 is connected with the pool chamber 5; the water conveying channel/pipe/tunnel 7 is arranged at the tail end of the side wall 6 of the working section and is arranged at the bottom of the pool close to the transverse wall 9 or is arranged at one side of the transverse wall 9 close to the sand discharge channel 14 and is arranged at the bottom of the pool close to the transverse wall 9;
when the water delivery channel/pipe/tunnel 7 is arranged at the end of the working section side wall 6 at one side;
the pool chamber 5 adjacent to the side working section side wall 6 is directly connected with a water delivery channel/pipe/tunnel 7;
the pool chamber 5 far away from the side wall 6 of the side working section is connected with a water delivery channel/pipe/tunnel 7 through a water taking pipe culvert/canal 11, and the water taking pipe culvert/canal 11 is arranged at the upper part of a transverse wall 9;
when the water transport canal/pipe/tunnel 7 is arranged at the bottom of the pool near the cross wall 9;
the pool chamber 5 is connected with a water delivery channel/pipe/tunnel 7 through a water taking pipe culvert/canal 11, and the required water taking pipe culvert/canal 11 is arranged in the transverse wall 9 and penetrates through the pool bottom;
when the water delivery canal/pipe/tunnel 7 is arranged on the side of the transverse wall 9 close to the sand drain 14;
the chamber 5 is connected to the water supply channel/pipe/tunnel 7 via water supply holes 10, the water supply holes 10 being provided in the transverse wall 9.
Furthermore, a filtering membrane 8 is arranged at the inlet of the water conveying channel/pipe/tunnel 7, the inlet and outlet of the water taking pipe culvert/channel 11 or the water conveying hole 10.
Furthermore, the bottom slopes of the upstream connecting section and the working section are 0.015-0.02, the bottom of the overflowing cross section of the pool chamber 5 is triangular, and the bottom angle α is not less than 40 degrees.
Further, the chamber 5 is divided into two chambers or a plurality of chambers by the partition wall 4, and when one of the chambers is washed, the other chambers can pass through the working flow, thereby realizing continuous and uninterrupted water supply.
Further, a trash rack is arranged at the position of the water inlet gate 2.
Further, when the water taking pipe culvert/canal 11 is arranged on the upper part of the transverse wall 9, several rows with different heights are arranged, and the water taking pipe culvert/canal 11 is used for conveying surface layer clear water in the pool chamber 5 to the water conveying channel/pipe/tunnel 7.
Further, several rows of water delivery holes 10 with different heights are arranged on the cross wall 9 according to the actual inflow situation and the water intake demand.
The utility model discloses a theory of operation is: the type of the sand settling tank is divided into a double-chamber type or a multi-chamber type, and belongs to a sand settling tank which alternately operates for sand settling and flushing and continuously supplies water.
The desilting basin comprises an upstream connecting section, a working section and a downstream connecting section, wherein the upstream connecting section is connected with a water diversion canal (pipe and tunnel), and the downstream connecting section leads to a downstream river and a water using structure. The stable working section that introduces of rivers through the inlet channel utilizes the working section to overflow the condition that the section is big, the velocity of flow is little, rivers hold with the sand power very low for the silt that is greater than the design and subsides the particle diameter in the rivers can deposit, utilizes water transmission hole and water intaking pipe culvert (canal) after that, makes the clear water on top layer after subsiding flow in water transmission channel (pipe, tunnel). If the clean water gathered into the water delivery channel is used for power generation, factory and city water supply, the sand-containing water flow can be further refined and the sand content can be reduced by arranging the filtering membranes at the water inlet and outlet ports of the water delivery channel (pipe and tunnel) and the water delivery hole, and then the drinking water can be supplied to a power station, a factory and a city by treating the drinking water through the water quality purifier; if the guide water is used for agricultural irrigation, a filtering membrane is not needed to be arranged, and practice shows that the silt containing organic matters and having fine grain size is deposited in the field, so that the effect of improving the soil is achieved. When a certain chamber of the working section is deposited to a certain degree, the sand content and the grain diameter of the discharged sand exceed the designed sediment standard of the silt, the sand-washing gate can be used for timely washing so as to recover the sediment volume and the sediment effect.
The section of overflowing is according to the design idea that the mud-rock flow ditch overflows fast, tentatively plans to be triangle-shaped, can remain stable maximum natural angle of repose when piling up according to loose cohesionless soil again, and considers neither influencing the desilting, is convenient for wash the sedimentary silt in the pond room 5 again, designs triangle-shaped base angle α for the angle that is not less than 40.
Figure DEST_PATH_IMAGE002
In the formula: v is the sand-flushing flow velocity of the working section, m/s; c is a metabolic factor; r is the hydraulic radius m when the average water depth is h during sand flushing. The bottom slope i can be calculated according to actual engineering, and is usually 0.015-0.02. Meanwhile, the filtering membrane 8 can be additionally arranged or removed at the inlet of the water delivery channel/pipe/tunnel 7 and the water delivery hole 10 according to the purpose of the settled water, so that rust, silt, colloid and the like in the water can be effectively removed, the silt content in the obtained water is reduced, and the settled water can be used for agricultural irrigation, power generation, factory, city water supply and the like.
The water inlet gate 2 at the inlet of the upstream connecting section controls the whole pool chamber 5 to operate, and whether a trash rack is arranged on the water inlet gate 2 or not is determined according to the condition of the dirt entering the pool.
The water conveying channel/pipe/tunnel 7 is arranged at the tail end of the side wall 6 of the working section and at the bottom of the pool close to the transverse wall 9 or at the side of the transverse wall 9 close to the sand discharge channel 14 and at the bottom of the pool close to the transverse wall 9; after the sand-containing water flow is settled by the working section of the sand basin, partial silt is removed, the sand content is reduced, and clear water on the surface layer can be taken out through the water delivery channel/pipe/tunnel 7 for farmland irrigation.
Filter membrane 8 sets up in 7 import departments of water delivery channel/pipe/tunnel, 11 business turn over departments of water intaking pipe culvert/canal and water delivery hole 10 departments, can further filter the water after the sediment, gets rid of iron rust, silt, colloid etc. in the aquatic, reduces the silt content in the aquatic of getting, also is convenient for mill, city water supply engineering follow-up do further purification to water, also can effectively protect water quality purifier simultaneously.
The water taking pipe culvert/canal 11 is arranged on the transverse wall 9 and below the bottom of the pool and is used for conveying surface layer clear water in the pool chamber 5 into the water conveying channel/pipe/tunnel 7. Several rows of water intake pipe culverts/canals 11 with different heights can be arranged on the cross wall 9 according to the actual inflow condition and the water intake demand.
The water delivery holes 10 are arranged in the transverse wall 9. Several rows of water delivery holes 10 with different heights can be arranged on the cross wall 9 according to the actual inflow condition and the water intake requirement.
The sand sluicing gate 13 is arranged at the tail end of the pool chamber 5. Is convenient for flushing and discharging sand and controlling the flow rate during emptying and flushing. The gate design satisfies the local opening condition.
The sand discharge passage 14 is connected with the pool chamber 5. The sediment deposited at the bottom of the pool is gathered into the sand discharge channel 14 through the sand-washing gate 13 and then is discharged into the barren beach or the downstream river through the sand discharge channel 14.
The utility model has the advantages that:
the bottom of the overflowing cross section of the sand basin is set to be triangular, so that the silt settled at the working section of the sand basin can be washed conveniently; meanwhile, the detachable filtering membrane is utilized, so that the sand-containing water flow can not only meet the agricultural irrigation water, but also reach the standard before water quality purification of power stations, factories, urban water and the like. The sediment deposited by the sand discharge channel can be discharged into a downstream river or a barren beach by utilizing the sand discharge channel, and the sediment can also be used for reconstructing a fertile farmland or a forest land, thereby having remarkable significance for saving water resources and protecting the ecological environment.
Drawings
Fig. 1 is a plan view of a desilting basin with a water delivery canal/pipe/tunnel 7 arranged at the end of the side wall of the working section on one side and at the bottom of the basin near the cross wall (9); wherein the cross-sectional views of fig. 2-7 are all observed along the direction of water flow.
FIG. 2 is a longitudinal sectional view (I-I) of the sand basin in which the water supply canal/pipe/tunnel is arranged at the end of the side wall of the working section on one side and at the bottom of the basin near the cross wall (9);
FIG. 3 is a cross-sectional view of the diversion canal of the present invention (II-II);
fig. 4 is a cross-sectional view (iii-iii) of a sand basin section with the water delivery canal/pipe/tunnel arranged at the end of the side wall of the section on one side and at the bottom of the basin near the cross-wall (9).
Fig. 5 is a cross-sectional view (iv-iv) of the end of the sand basin segment communicating with the water delivery channel/pipe/tunnel when the water delivery channel/pipe/tunnel is arranged at the end of the side wall of the working segment on one side and at the bottom of the basin near the cross wall (9).
Figure 6 is a longitudinal section of the cross-wall (v-v) when the water delivery canal/pipe/tunnel is arranged at the end of the side wall of the working section on one side and at the bottom of the basin near the cross-wall (9).
Fig. 7 is a cross section view (vi-vi) of the downstream connecting section of the sand-washing gate of the present invention.
FIG. 8 is a plan view of the sand basin with the water delivery canal/pipe/tunnel disposed on the side of the transverse wall (9) near the sand discharge channel (14) and disposed at the bottom of the basin near the transverse wall (9); wherein the cross-sectional views of fig. 9-11 are all viewed along the direction of water flow.
Fig. 9 is a longitudinal section view of the sand basin (vii-vii) when the water delivery canal/pipe/tunnel (7) is arranged on the side of the cross wall (9) near the sand discharge channel (14) and on the bottom of the basin near the cross wall (9).
Fig. 10 is a cross-sectional view (viii-viii) of the working section of the sand basin when the water delivery channel/pipe/tunnel (7) is arranged on the side of the cross wall (9) near the sand discharge channel (14) and on the bottom of the basin near the cross wall (9).
FIG. 11 is a longitudinal sectional view (IX-IX) of the cross wall when the water transport canal/pipe/tunnel (7) is arranged on the side of the cross wall (9) close to the sand discharge passage (14) and on the bottom of the pond close to the cross wall (9).
The various reference numbers in FIGS. 1-11: 1-water diversion channel/pipe/tunnel, 2-water inlet gate, 3-upstream connecting section side wall, 4-partition wall, 5-pool chamber, 6-working section side wall, 7-water conveying channel/pipe/tunnel, 8-filtering membrane, 9-cross wall, 10-water conveying hole, 11-water taking pipe culvert/channel, 12-sand washing gallery, 13-sand washing gate, 14-sand discharge channel.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1-7, a flushing type desilting basin comprises an upstream connecting section, a working section and a downstream connecting section; the upstream connecting section is connected with the diversion canal/pipe/tunnel 1, and the downstream connecting section leads to a downstream river;
the upstream connecting section and the working section consist of a water inlet gate 2, an upstream connecting section side wall 3, a partition wall 4 and a working section side wall 6;
the downstream connecting section consists of a water delivery channel/pipe/tunnel 7, a filtering membrane 8, a cross wall 9, a water delivery hole 10, a water taking pipe culvert/channel 11, a sand washing gallery 12, a sand washing gate 13 and a sand discharge passage 14;
the partition wall 4 is used for dividing the pool chamber 5; the pool chamber 5 is enclosed by the water inlet gate 2, the upstream connecting section side wall 3, the working section side wall 6 and the transverse wall 9, and the sand flushing gallery 12 is arranged between the transverse wall 9 and the pool bottom;
the water inlet gate 2 is arranged at the joint of the outlet of the water diversion canal/pipe/tunnel 1 and the inlet of the upstream connecting section; the sand washing gate 13 is arranged at the tail end of the pool chamber 5; the sand discharge channel 14 is connected with the pool chamber 5; the water delivery channel/pipe/tunnel 7 is arranged on the end of the working section side wall 6 and on the bottom of the pool close to the cross wall 9;
when the water delivery channel/pipe/tunnel 7 is arranged at the end of the working section side wall 6 at one side;
the pool chamber 5 adjacent to the side working section side wall 6 is directly connected with a water delivery channel/pipe/tunnel 7;
the pool chamber 5 far away from the side wall 6 of the side working section is connected with a water delivery channel/pipe/tunnel 7 through a water taking pipe culvert/canal 11, and the water taking pipe culvert/canal 11 is arranged at the upper part of a transverse wall 9;
when the water transport canal/pipe/tunnel 7 is arranged at the bottom of the pool near the cross wall 9;
the pool chamber 5 is connected with a water delivery channel/pipe/tunnel 7 through a water taking pipe culvert/canal 11, and the required water taking pipe culvert/canal 11 is arranged in the transverse wall 9 and penetrates through the pool bottom;
furthermore, filtering membranes 8 are arranged at the inlet of the water delivery channel/pipe/tunnel 7 and the inlet and outlet of the water taking pipe culvert/channel 11. As shown in fig. 2 and 5. The water after precipitation can be further filtered to remove rust, silt, colloid and the like in the water, reduce the silt content in the obtained water, facilitate the subsequent further purification of the water in factories and urban water supply projects, and effectively protect the water quality purifier.
Furthermore, the bottom slopes of the upstream connecting section and the working section are 0.015-0.02, the bottom of the overflowing cross section of the pool chamber 5 is triangular, and the bottom angle α is not less than 40 degrees.
Further, the chamber 5 is divided into two chambers or a plurality of chambers by the partition wall 4, and when one of the chambers is washed, the other chambers can pass through the working flow, thereby realizing continuous and uninterrupted water supply.
Further, a trash rack is arranged at the position of the water inlet gate 2.
Further, when the water taking pipe culvert/canal 11 is arranged on the upper part of the transverse wall 9, several rows with different heights are arranged, and the water taking pipe culvert/canal 11 is used for conveying surface layer clear water in the pool chamber 5 to the water conveying channel/pipe/tunnel 7.
The sand flushing gate 13 is arranged at the tail end of the pool chamber 5, so that sand can be conveniently discharged and the flow rate during emptying and flushing can be conveniently controlled. The gate bottom is slightly lower than the pool bottom by 0.3-0.5 m, and the gate design meets the local opening condition, as shown in figure 7; the sand discharge passage 14 is connected with the pool chamber 5, and the silt deposited at the pool bottom is converged into the sand discharge passage 14 through the sand flushing passage 12 and the sand flushing gate 13 and then discharged into a barren beach or a downstream river through the sand discharge passage 14;
the water transport channels/pipes/tunnels 7 are arranged on the ends of the working section side walls 6 and on the bottom of the basin near the cross walls 9, as shown in fig. 1. After the sand-containing water flow is settled by the working section of the sand basin, partial silt is removed, the sand content is reduced, and clear water on the surface layer can be taken out through the water delivery channel/pipe/tunnel 7.
As shown in fig. 2 and 6. Water intaking pipe culvert/canal 11 arranges in cross wall 9 and passes the bottom of the pool and water intaking pipe culvert/canal 11 also arranges on cross wall 9 upper portion, can arrange several rows of water intaking pipe culvert/canals 11 that highly differ according to actual incoming flow condition and water intaking demand on cross wall 9. When the incoming flow is small, the clear water after sedimentation is sent out through the low-position water taking pipe culvert/canal 11, and when the incoming flow is large and the water level rises, the clear water after sedimentation is sent out through the high-position water taking pipe culvert/canal 11.
Furthermore, the bottom slopes of the upstream connecting section and the working section are 0.015-0.02, the bottom of the overflowing cross section of the pool chamber 5 is triangular, and the bottom angle α is not less than 40 degrees, so that the sediment deposition is not influenced, and the sediment deposited in the pool chamber 5 is convenient to wash.
Further, the chamber 5 is divided into two chambers or a plurality of chambers by the partition wall 4, and when one of the chambers is washed, the other chambers can pass through the working flow, thereby realizing continuous and uninterrupted water supply. The sand settling tank is in a double-chamber type or a multi-chamber type, can be arranged according to actual requirements, and belongs to a sand settling tank which alternately operates for settling sand and flushing for continuous water supply. When one of the chambers 5 is deposited to a certain degree, the sand content and the grain diameter of the discharged tank exceed the designed sediment standard of the silt, the sand flushing gate 13 is used for flushing in time to recover the sediment volume, and the other chambers 5 can realize the continuous water supply function through the working flow.
Further, a trash rack is arranged at the position of the water inlet gate 2. The water inlet gate 2 at the inlet of the upstream connecting section controls the whole pool chamber 5 to operate, and whether a trash rack is arranged on the water inlet gate 2 or not is determined according to the condition of the dirt entering the pool.
Example 2: as shown in fig. 3, 7, 8-11, a flushing type desilting basin comprises an upstream connecting section, a working section and a downstream connecting section; the upstream connecting section is connected with the diversion canal/pipe/tunnel 1, and the downstream connecting section leads to a downstream river;
the upstream connecting section and the working section consist of a water inlet gate 2, an upstream connecting section side wall 3, a partition wall 4 and a working section side wall 6;
the downstream connecting section consists of a water delivery channel/pipe/tunnel 7, a filtering membrane 8, a cross wall 9, a water delivery hole 10, a water taking pipe culvert/channel 11, a sand washing gallery 12, a sand washing gate 13 and a sand discharge passage 14;
the partition wall 4 is used for dividing the pool chamber 5; the pool chamber 5 is enclosed by the water inlet gate 2, the upstream connecting section side wall 3, the working section side wall 6 and the transverse wall 9, and the sand flushing gallery 12 is arranged between the transverse wall 9 and the pool bottom;
the water inlet gate 2 is arranged at the joint of the outlet of the water diversion canal/pipe/tunnel 1 and the inlet of the upstream connecting section; the sand washing gate 13 is arranged at the tail end of the pool chamber 5; the sand discharge channel 14 is connected with the pool chamber 5; the water delivery channel/pipe/tunnel 7 is arranged on the side of the transverse wall 9 close to the sand discharge passage 14 and at the bottom of the pool close to the transverse wall 9; after the sand-containing water flow is settled by the working section of the sand basin, partial silt is removed, the sand content is reduced, and clear water on the surface layer can be taken out through the water delivery channel/pipe/tunnel 7.
When the water delivery canal/pipe/tunnel 7 is arranged on the side of the transverse wall 9 close to the sand drain 14;
the pool chamber 5 is connected with a water delivery channel/pipe/tunnel 7 through a water delivery hole 10, and the required water delivery hole 10 is arranged on a transverse wall 9; several rows of water delivery holes 10 with different heights can be arranged on the cross wall 9 according to the actual inflow condition and the water intake requirement. When the incoming flow is small, the settled clean water is sent out through the water taking pipe culvert/channel 11 or the low-position water conveying hole 10, and when the incoming flow is large and the water level rises, the settled clean water is sent out through the high-position water conveying hole 10.
When the water transport canal/pipe/tunnel 7 is arranged at the bottom of the pool near the cross wall 9;
the pond 5 is connected to the water delivery channel/pipe/tunnel 7 by means of a water intake pipe culvert/canal 11, the required water intake pipe culvert/canal 11 now being arranged in the transverse wall 9 and passing through the pond bottom.
Furthermore, filtering membranes 8 are arranged at the inlet and outlet of the water taking pipe culvert/channel 11 and the water delivery hole 10.
Furthermore, the bottom slopes of the upstream connecting section and the working section are 0.015-0.02, the bottom of the overflowing cross section of the pool chamber 5 is triangular, and the bottom angle α is not less than 40 degrees.
Further, the chamber 5 is divided into two chambers or a plurality of chambers by the partition wall 4, and when one of the chambers is washed, the other chambers can pass through the working flow, thereby realizing continuous and uninterrupted water supply.
Further, a trash rack is arranged at the position of the water inlet gate 2.
Further, the water delivery holes 10 are arranged in rows of water delivery holes 10 with different heights on the cross wall 9 according to the actual inflow condition and the water intake requirement.
Furthermore, the bottom slopes of the upstream connecting section and the working section are 0.015-0.02, the bottom of the overflowing cross section of the pool chamber 5 is triangular, and the bottom angle α is not less than 40 degrees, so that the sediment deposition is not influenced, and the sediment deposited in the pool chamber 5 is convenient to wash.
Further, the chamber 5 is divided into two chambers or a plurality of chambers by the partition wall 4, and when one of the chambers is washed, the other chambers can pass through the working flow, thereby realizing continuous and uninterrupted water supply. The sand settling tank is in a double-chamber type or a multi-chamber type, can be arranged according to actual requirements, and belongs to a sand settling tank which alternately operates for settling sand and flushing for continuous water supply. When one of the chambers 5 is deposited to a certain degree, the sand content and the grain diameter of the discharged tank exceed the designed sediment standard of the silt, the sand flushing gate 13 is used for flushing in time to recover the sediment volume, and the other chambers 5 can realize the continuous water supply function through the working flow.
Further, a trash rack is arranged at the position of the water inlet gate 2. The water inlet gate 2 at the inlet of the upstream connecting section controls the whole pool chamber 5 to operate, and whether a trash rack is arranged on the water inlet gate 2 or not is determined according to the condition of the dirt entering the pool.
While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (7)

1. A washing formula desilting basin which characterized in that: comprises an upstream connecting section, a working section and a downstream connecting section; the upstream connecting section is connected with the diversion canal/pipe/tunnel (1), and the downstream connecting section leads to a downstream river;
the upstream connecting section and the working section consist of a water inlet gate (2), an upstream connecting section side wall (3), a partition wall (4) and a working section side wall (6);
the downstream connecting section consists of a water delivery channel/pipe/tunnel (7), a filtering membrane (8), a transverse wall (9), a water delivery hole (10), a water taking pipe culvert/canal (11), a sand washing gallery (12), a sand washing gate (13) and a sand discharge gallery (14);
the partition wall (4) is used for partitioning the pool chamber (5); the pool chamber (5) is enclosed by the water inlet gate (2), the upstream connecting section side wall (3), the working section side wall (6) and the transverse wall (9), and the sand flushing gallery (12) is arranged between the transverse wall (9) and the pool bottom;
the water inlet gate (2) is arranged at the joint of the outlet of the water diversion canal/pipe/tunnel (1) and the inlet of the upstream connecting section; the sand flushing gate (13) is arranged at the tail end of the pool chamber (5); the sand discharge channel (14) is connected with the pool chamber (5); the water delivery channel/pipe/tunnel (7) is arranged at the tail end of the side wall (6) of the working section and at the bottom of the pool close to the transverse wall (9) or at one side of the transverse wall (9) close to the sand discharge passage (14) and at the bottom of the pool close to the transverse wall (9);
when the water delivery channel/pipe/tunnel (7) is arranged at the tail end of the working section side wall (6) on one side;
the pool chamber (5) close to the side wall (6) of the side working section is directly connected with a water delivery channel/pipe/tunnel (7);
the pool chamber (5) far away from the side wall (6) of the side working section is connected with a water delivery channel/pipe/tunnel (7) through a water taking pipe culvert/canal (11), and the water taking pipe culvert/canal (11) is arranged at the upper part of the transverse wall (9);
when the water delivery channel/pipe/tunnel (7) is arranged at the bottom of the pool close to the cross wall (9);
the pool chamber (5) is connected with a water delivery channel/pipe/tunnel (7) through a water taking pipe culvert/canal (11), and the required water taking pipe culvert/canal (11) is arranged in the transverse wall (9) and penetrates through the pool bottom;
when the water delivery channel/pipe/tunnel (7) is arranged on the side of the transverse wall (9) close to the sand discharge channel (14);
the pool chamber (5) is connected with the water delivery channel/pipe/tunnel (7) through the water delivery hole (10), and the required water delivery hole (10) is arranged on the transverse wall (9).
2. A flushing desilting basin according to claim 1, characterized in that: and a filtering membrane (8) is arranged at the inlet of the water delivery channel/pipe/tunnel (7), the inlet and outlet of the water taking pipe culvert/channel (11) or the water delivery hole (10).
3. A washing type desilting basin according to claim 1, characterized in that the bottom slopes of the upstream connecting section and the working section are 0.015-0.02, the bottom of the overflowing cross section of the basin chamber (5) is triangular, and the bottom angle α is not less than 40 degrees.
4. A flushing desilting basin according to claim 1, characterized in that: the pool chamber (5) is divided into a double-chamber type or a multi-chamber type through the partition wall (4), and when one pool chamber is washed, the other pool chambers can pass through the working flow, so that continuous and uninterrupted water supply is realized.
5. A flushing desilting basin according to claim 1, characterized in that: the water inlet gate (2) is provided with a trash rack.
6. A flushing desilting basin according to claim 1, characterized in that: when water intaking pipe culvert/canal (11) were arranged on horizontal wall (9) upper portion, arranged several rows of highly different, water intaking pipe culvert/canal (11) were used for carrying the surface layer clear water in pond room (5) in water delivery channel/pipe/tunnel (7).
7. A flushing desilting basin according to claim 1, characterized in that: according to the actual inflow situation and the water taking demand, a plurality of rows of water delivery holes (10) with different heights are arranged on the transverse wall (9).
CN201920327674.0U 2019-03-15 2019-03-15 Flushing type sand basin Expired - Fee Related CN210186599U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920327674.0U CN210186599U (en) 2019-03-15 2019-03-15 Flushing type sand basin

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Application Number Priority Date Filing Date Title
CN201920327674.0U CN210186599U (en) 2019-03-15 2019-03-15 Flushing type sand basin

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112246012A (en) * 2020-10-23 2021-01-22 新疆水利水电科学研究院 Reverse type forward weir sand removing system
CN114182698A (en) * 2021-11-18 2022-03-15 上海勘测设计研究院有限公司 Continuous sand flushing type desilting basin structure and overhauling operation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112246012A (en) * 2020-10-23 2021-01-22 新疆水利水电科学研究院 Reverse type forward weir sand removing system
CN114182698A (en) * 2021-11-18 2022-03-15 上海勘测设计研究院有限公司 Continuous sand flushing type desilting basin structure and overhauling operation method thereof

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